20009722760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1\times {\mathrm{643}}^1$

素因数の和:1015

約数の個数: 128

約数和(自身を含む): 47225808000

約数和(自身を除く): 27216085240

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 139, 145, 193, 232, 278, 290, 386, 556, 580, 643, 695, 772, 965, 1112, 1160, 1286, 1390, 1544, 1930, 2572, 2780, 3215, 3860, 4031, 5144, 5560, 5597, 6430, 7720, 8062, 11194, 12860, 16124, 18647, 20155, 22388, 25720, 26827, 27985, 32248, 37294, 40310, 44776, 53654, 55970, 74588, 80620, 89377, 93235, 107308, 111940, 124099, 134135, 149176, 161240, 178754, 186470, 214616, 223880, 248198, 268270, 357508, 372940, 446885, 496396, 536540, 620495, 715016, 745880, 777983, 893770, 992792, 1073080, 1240990, 1555966, 1787540, 2481980, 2591933, 3111932, 3575080, 3598871, 3889915, 4963960, 5183866, 6223864, 7197742, 7779830, 10367732, 12959665, 14395484, 15559660, 17249761, 17994355, 20735464, 25919330, 28790968, 31119320, 34499522, 35988710, 51838660, 68999044, 71977420, 86248805, 103677320, 137998088, 143954840, 172497610, 344995220, 500243069, 689990440, 1000486138, 2000972276, 2501215345, 4001944552, 5002430690, 10004861380, 20009722760]

約数ペア:

[(1, 20009722760), (2, 10004861380), (4, 5002430690), (5, 4001944552), (8, 2501215345), (10, 2000972276), (20, 1000486138), (29, 689990440), (40, 500243069), (58, 344995220), (116, 172497610), (139, 143954840), (145, 137998088), (193, 103677320), (232, 86248805), (278, 71977420), (290, 68999044), (386, 51838660), (556, 35988710), (580, 34499522), (643, 31119320), (695, 28790968), (772, 25919330), (965, 20735464), (1112, 17994355), (1160, 17249761), (1286, 15559660), (1390, 14395484), (1544, 12959665), (1930, 10367732), (2572, 7779830), (2780, 7197742), (3215, 6223864), (3860, 5183866), (4031, 4963960), (5144, 3889915), (5560, 3598871), (5597, 3575080), (6430, 3111932), (7720, 2591933), (8062, 2481980), (11194, 1787540), (12860, 1555966), (16124, 1240990), (18647, 1073080), (20155, 992792), (22388, 893770), (25720, 777983), (26827, 745880), (27985, 715016), (32248, 620495), (37294, 536540), (40310, 496396), (44776, 446885), (53654, 372940), (55970, 357508), (74588, 268270), (80620, 248198), (89377, 223880), (93235, 214616), (107308, 186470), (111940, 178754), (124099, 161240), (134135, 149176)]